Make note of the 1:50 mark where he specifically said how the TE and the RT need to combo on the DE before one of them releasing to the second level.

Also, note the 3:30 mark where he talks about the RB's read.
As the DE played to the outside, Foster needed to turn inside (like I said he should). And Foster did look inside, but as he saw nothing there, he tried to bounce outside. All these things combine to make Newton looked bad, while I don't see him as the problem. It was the other guys on the line on that particular play.